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120695 (1997 GU40)
Classification: Main-belt Asteroid          SPK-ID: 2120695
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533669702130049 3.1731e-08  
a 2.185721846096582 8.7584e-09 au
q 1.850504308832373 6.7208e-08 au
i 3.120914336650883 3.6867e-06 deg
node 65.34127357618395 8.1986e-05 deg
peri 213.7928825264556 8.347e-05 deg
M 7.755133449353051 1.5775e-05 deg
tp 2458975.074029361531
(2020-May-05.57402936)
5.1705e-05 TDB
period 1180.295540963556
3.23
7.0943e-06
1.942e-08
d
yr
n .3050083538450948 1.8333e-09 deg/d
Q 2.52093938336079 1.0102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      8517 days (23.32 yr)  
   first obs. used      1997-04-06  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:10:41  

Additional Information
 Earth MOID = .835073 au 
 Jupiter MOID = 2.59453 au 
 T_jup = 3.660 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO432707  

120695 (1997 GU40)          Discovered 1997-Apr-07 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1997 GU40 = 1997 HF12 = 2001 UN100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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